The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 18, 2002
Filed:
Jul. 30, 1999
Kenneth D. Warren, Spokane, WA (US);
Impact Service Corporation, Spokane, WA (US);
Abstract
An impeller shoe ( ) comprising an elongated body ( ) of abrasion-resistant material extending longitudinally from an inner end ( ) to an outer end ( ) and having a pocket ( ) defined in the elongated body ( ). The pocket ( ) has an open end at the front ( ) of the elongated body ( ) and two opposing sides ( and ) extending transversely through the elongated body ( ) toward the back ( ) of the body. The two sides ( and ) of the pocket ( ) are oriented substantially parallel to each other and set at an angle with respect to the plane ( ) of the back of the body in a direction toward the inner end ( ). The pockets ( ) also have a substantially even width measured between the two sides ( and ) through the length of the pockets. To further extend the wear life of an impeller shoe ( ), one or more rods ( ) made of higher abrasion-resistant material may be embedded within the impeller shoe ( ).